| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // Author: morlovich@google.com (Maksim Orlovich) |
| |
| #include "net/instaweb/rewriter/public/rewrite_driver_pool.h" |
| |
| #include "net/instaweb/rewriter/public/rewrite_driver.h" |
| #include "pagespeed/kernel/base/stl_util.h" |
| |
| namespace net_instaweb { |
| |
| const int RewriteDriverPool::kMaxDriversInPool; |
| |
| RewriteDriverPool::RewriteDriverPool() {} |
| |
| RewriteDriverPool::~RewriteDriverPool() { |
| STLDeleteElements(&drivers_); |
| } |
| |
| RewriteDriver* RewriteDriverPool::PopDriver() { |
| if (!drivers_.empty()) { |
| RewriteDriver* driver = drivers_.back(); |
| drivers_.pop_back(); |
| return driver; |
| } |
| return NULL; |
| } |
| |
| void RewriteDriverPool::RecycleDriver(RewriteDriver* driver) { |
| if (drivers_.size() < kMaxDriversInPool) { |
| drivers_.push_back(driver); |
| driver->Clear(); |
| } else { |
| delete driver; |
| } |
| } |
| |
| } // namespace net_instaweb |